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gdb/ 

* Makefile.in (linux-ptrace.o): New.
	* common/linux-procfs.c (linux_proc_pid_is_zombie): New,
	from linux-nat.c.
	* common/linux-procfs.h (linux_proc_pid_is_zombie): New declaration.
	* common/linux-ptrace.c: New file.
	* config/alpha/alpha-linux.mh (NATDEPFILES): Add linux-ptrace.o.
	* config/arm/linux.mh: Likewise.
	* config/i386/linux.mh: Likewise.
	* config/i386/linux64.mh: Likewise.
	* config/ia64/linux.mh: Likewise.
	* config/m32r/linux.mh: Likewise.
	* config/m68k/linux.mh: Likewise.
	* config/mips/linux.mh: Likewise.
	* config/pa/linux.mh: Likewise.
	* config/powerpc/linux.mh: Likewise.
	* config/powerpc/ppc64-linux.mh: Likewise.
	* config/powerpc/spu-linux.mh: Likewise.
	* config/s390/s390.mh: Likewise.
	* config/sparc/linux.mh: Likewise.
	* config/sparc/linux64.mh: Likewise.
	* config/xtensa/linux.mh: Likewise.
	* linux-nat.c (linux_lwp_is_zombie): Remove, move it to
	common/linux-procfs.c.
	(wait_lwp): Rename linux_lwp_is_zombie to linux_proc_pid_is_zombie.

gdb/gdbserver/
	* Makefile.in (linux-ptrace.o): New.
	* configure.srv (arm*-*-linux*, bfin-*-*linux*, crisv32-*-linux*)
	(cris-*-linux*, i[34567]86-*-linux*, ia64-*-linux*, m32r*-*-linux*)
	(m68*-*-linux*, m68*-*-uclinux*, mips*-*-linux*, powerpc*-*-linux*)
	(s390*-*-linux*, sh*-*-linux*, sparc*-*-linux*, tic6x-*-uclinux)
	(x86_64-*-linux*, xtensa*-*-linux*): Add linux-ptrace.o to SRV_TGTOBJ
	of these targets.
	* linux-low.c (linux_attach_lwp_1): Remove redundent else clause.
This commit is contained in:
Jan Kratochvil 2012-03-13 15:00:37 +00:00
parent 44f238bb63
commit 5f572decf9
26 changed files with 146 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
gdb/ChangeLog
View File

@ -1,3 +1,30 @@
2012-03-13 Jan Kratochvil <jan.kratochvil@redhat.com>
* Makefile.in (linux-ptrace.o): New.
* common/linux-procfs.c (linux_proc_pid_is_zombie): New,
from linux-nat.c.
* common/linux-procfs.h (linux_proc_pid_is_zombie): New declaration.
* common/linux-ptrace.c: New file.
* config/alpha/alpha-linux.mh (NATDEPFILES): Add linux-ptrace.o.
* config/arm/linux.mh: Likewise.
* config/i386/linux.mh: Likewise.
* config/i386/linux64.mh: Likewise.
* config/ia64/linux.mh: Likewise.
* config/m32r/linux.mh: Likewise.
* config/m68k/linux.mh: Likewise.
* config/mips/linux.mh: Likewise.
* config/pa/linux.mh: Likewise.
* config/powerpc/linux.mh: Likewise.
* config/powerpc/ppc64-linux.mh: Likewise.
* config/powerpc/spu-linux.mh: Likewise.
* config/s390/s390.mh: Likewise.
* config/sparc/linux.mh: Likewise.
* config/sparc/linux64.mh: Likewise.
* config/xtensa/linux.mh: Likewise.
* linux-nat.c (linux_lwp_is_zombie): Remove, move it to
common/linux-procfs.c.
(wait_lwp): Rename linux_lwp_is_zombie to linux_proc_pid_is_zombie.
2012-03-13 Hui Zhu <teawater@gmail.com>
Pedro Alves <palves@redhat.com>

4
gdb/Makefile.in
View File

@ -1929,6 +1929,10 @@ linux-procfs.o: $(srcdir)/common/linux-procfs.c
$(COMPILE) $(srcdir)/common/linux-procfs.c
$(POSTCOMPILE)
linux-ptrace.o: $(srcdir)/common/linux-ptrace.c
$(COMPILE) $(srcdir)/common/linux-ptrace.c
$(POSTCOMPILE)
common-agent.o: $(srcdir)/common/agent.c
$(COMPILE) $(srcdir)/common/agent.c
$(POSTCOMPILE)

31
gdb/common/linux-procfs.c
View File

@ -84,3 +84,34 @@ linux_proc_pid_is_stopped (pid_t pid)
}
return retval;
}
/* See linux-procfs.h declaration. */
int
linux_proc_pid_is_zombie (pid_t pid)
{
char buffer[100];
FILE *procfile;
int retval;
int have_state;
xsnprintf (buffer, sizeof (buffer), "/proc/%d/status", (int) pid);
procfile = fopen (buffer, "r");
if (procfile == NULL)
{
warning (_("unable to open /proc file '%s'"), buffer);
return 0;
}
have_state = 0;
while (fgets (buffer, sizeof (buffer), procfile) != NULL)
if (strncmp (buffer, "State:", 6) == 0)
{
have_state = 1;
break;
}
retval = (have_state
&& strcmp (buffer, "State:\tZ (zombie)\n") == 0);
fclose (procfile);
return retval;
}

4
gdb/common/linux-procfs.h
View File

@ -31,4 +31,8 @@ extern int linux_proc_get_tgid (int lwpid);
extern int linux_proc_pid_is_stopped (pid_t pid);
/* Return non-zero if PID is a zombie. */
extern int linux_proc_pid_is_zombie (pid_t pid);
#endif /* COMMON_LINUX_PROCFS_H */

26
gdb/common/linux-ptrace.c Normal file
View File

@ -0,0 +1,26 @@
/* Linux-specific ptrace manipulation routines.
Copyright (C) 2012 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifdef GDBSERVER
#include "server.h"
#else
#include "defs.h"
#include "gdb_string.h"
#endif
#include "linux-ptrace.h"

2
gdb/config/alpha/alpha-linux.mh
View File

@ -2,7 +2,7 @@
NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o alpha-linux-nat.o \
fork-child.o proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
# The dynamically loaded libthread_db needs access to symbols in the

2
gdb/config/arm/linux.mh
View File

@ -3,7 +3,7 @@
NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o arm-linux-nat.o \
proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES= -ldl $(RDYNAMIC)

2
gdb/config/i386/linux.mh
View File

@ -4,7 +4,7 @@ NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o \
i386-nat.o i386-linux-nat.o \
proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
# The dynamically loaded libthread_db needs access to symbols in the

2
gdb/config/i386/linux64.mh
View File

@ -3,7 +3,7 @@ NATDEPFILES= inf-ptrace.o fork-child.o \
i386-nat.o amd64-nat.o amd64-linux-nat.o \
linux-nat.o linux-osdata.o \
proc-service.o linux-thread-db.o linux-fork.o \
linux-procfs.o
linux-procfs.o linux-ptrace.o
NAT_FILE= config/nm-linux.h
NAT_CDEPS = $(srcdir)/proc-service.list

2
gdb/config/ia64/linux.mh
View File

@ -5,7 +5,7 @@ NATDEPFILES= inf-ptrace.o fork-child.o \
core-regset.o ia64-linux-nat.o \
proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o \
linux-procfs.o
linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES = -ldl $(RDYNAMIC)

2
gdb/config/m32r/linux.mh
View File

@ -3,7 +3,7 @@
NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o \
m32r-linux-nat.o proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES= -ldl $(RDYNAMIC)

2
gdb/config/m68k/linux.mh
View File

@ -4,7 +4,7 @@ NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o \
m68klinux-nat.o \
proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
# The dynamically loaded libthread_db needs access to symbols in the

2
gdb/config/mips/linux.mh
View File

@ -3,7 +3,7 @@ NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o mips-linux-nat.o \
linux-thread-db.o proc-service.o \
linux-nat.o linux-osdata.o linux-fork.o \
linux-procfs.o
linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES = -ldl $(RDYNAMIC)

2
gdb/config/pa/linux.mh
View File

@ -3,7 +3,7 @@ NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o \
hppa-linux-nat.o proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o \
linux-procfs.o
linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES = -ldl $(RDYNAMIC)

2
gdb/config/powerpc/linux.mh
View File

@ -5,7 +5,7 @@ XM_CLIBS=
NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o \
ppc-linux-nat.o proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES = -ldl $(RDYNAMIC)

2
gdb/config/powerpc/ppc64-linux.mh
View File

@ -5,7 +5,7 @@ XM_CLIBS=
NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o \
ppc-linux-nat.o proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
# The PowerPC has severe limitations on TOC size, and uses them even

2
gdb/config/powerpc/spu-linux.mh
View File

@ -4,5 +4,5 @@
# PPU side of the Cell BE and debugging the SPU side.
NATDEPFILES = spu-linux-nat.o fork-child.o inf-ptrace.o \
linux-procfs.o
linux-procfs.o linux-ptrace.o

2
gdb/config/s390/s390.mh
View File

@ -2,6 +2,6 @@
NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o s390-nat.o \
linux-thread-db.o proc-service.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES = -ldl $(RDYNAMIC)

2
gdb/config/sparc/linux.mh
View File

@ -4,7 +4,7 @@ NATDEPFILES= sparc-nat.o sparc-linux-nat.o \
core-regset.o fork-child.o inf-ptrace.o \
proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o \
linux-procfs.o
linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
# The dynamically loaded libthread_db needs access to symbols in the

2
gdb/config/sparc/linux64.mh
View File

@ -5,7 +5,7 @@ NATDEPFILES= sparc-nat.o sparc64-nat.o sparc64-linux-nat.o \
fork-child.o inf-ptrace.o \
proc-service.o linux-thread-db.o \
linux-nat.o linux-osdata.o linux-fork.o \
linux-procfs.o
linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
# The dynamically loaded libthread_db needs access to symbols in the

2
gdb/config/xtensa/linux.mh
View File

@ -4,7 +4,7 @@ NAT_FILE= config/nm-linux.h
NATDEPFILES= inf-ptrace.o fork-child.o xtensa-linux-nat.o \
linux-thread-db.o proc-service.o \
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o
linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
NAT_CDEPS = $(srcdir)/proc-service.list
LOADLIBES = -ldl $(RDYNAMIC)

11
gdb/gdbserver/ChangeLog
View File

@ -1,3 +1,14 @@
2012-03-13 Jan Kratochvil <jan.kratochvil@redhat.com>
* Makefile.in (linux-ptrace.o): New.
* configure.srv (arm*-*-linux*, bfin-*-*linux*, crisv32-*-linux*)
(cris-*-linux*, i[34567]86-*-linux*, ia64-*-linux*, m32r*-*-linux*)
(m68*-*-linux*, m68*-*-uclinux*, mips*-*-linux*, powerpc*-*-linux*)
(s390*-*-linux*, sh*-*-linux*, sparc*-*-linux*, tic6x-*-uclinux)
(x86_64-*-linux*, xtensa*-*-linux*): Add linux-ptrace.o to SRV_TGTOBJ
of these targets.
* linux-low.c (linux_attach_lwp_1): Remove redundent else clause.
2012-03-08 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>

3
gdb/gdbserver/Makefile.in
View File

@ -415,6 +415,9 @@ signals.o: ../common/signals.c $(server_h) $(signals_def)
linux-procfs.o: ../common/linux-procfs.c $(server_h)
$(CC) -c $(CPPFLAGS) $(INTERNAL_CFLAGS) $< -DGDBSERVER
linux-ptrace.o: ../common/linux-ptrace.c $(server_h)
$(CC) -c $(CPPFLAGS) $(INTERNAL_CFLAGS) $< -DGDBSERVER
common-utils.o: ../common/common-utils.c $(server_h)
$(CC) -c $(CPPFLAGS) $(INTERNAL_CFLAGS) $< -DGDBSERVER

17
gdb/gdbserver/configure.srv
View File

@ -47,6 +47,7 @@ case "${target}" in
srv_regobj="${srv_regobj} arm-with-vfpv3.o"
srv_regobj="${srv_regobj} arm-with-neon.o"
srv_tgtobj="linux-low.o linux-osdata.o linux-arm-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_xmlfiles="arm-with-iwmmxt.xml"
srv_xmlfiles="${srv_xmlfiles} arm-with-vfpv2.xml"
srv_xmlfiles="${srv_xmlfiles} arm-with-vfpv3.xml"
@ -69,16 +70,19 @@ case "${target}" in
;;
bfin-*-*linux*) srv_regobj=reg-bfin.o
srv_tgtobj="linux-low.o linux-osdata.o linux-bfin-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
srv_linux_thread_db=yes
;;
crisv32-*-linux*) srv_regobj=reg-crisv32.o
srv_tgtobj="linux-low.o linux-osdata.o linux-crisv32-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_regsets=yes
srv_linux_thread_db=yes
;;
cris-*-linux*) srv_regobj=reg-cris.o
srv_tgtobj="linux-low.o linux-osdata.o linux-cris-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
srv_linux_thread_db=yes
;;
@ -93,6 +97,7 @@ case "${target}" in
srv_xmlfiles="${srv_xmlfiles} $srv_amd64_linux_xmlfiles"
fi
srv_tgtobj="linux-low.o linux-osdata.o linux-x86-low.o i386-low.o i387-fp.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
srv_linux_regsets=yes
srv_linux_thread_db=yes
@ -124,10 +129,12 @@ case "${target}" in
;;
ia64-*-linux*) srv_regobj=reg-ia64.o
srv_tgtobj="linux-low.o linux-osdata.o linux-ia64-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
;;
m32r*-*-linux*) srv_regobj=reg-m32r.o
srv_tgtobj="linux-low.o linux-osdata.o linux-m32r-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
srv_linux_thread_db=yes
;;
@ -137,6 +144,7 @@ case "${target}" in
srv_regobj=reg-m68k.o
fi
srv_tgtobj="linux-low.o linux-osdata.o linux-m68k-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
srv_linux_regsets=yes
srv_linux_thread_db=yes
@ -147,6 +155,7 @@ case "${target}" in
srv_regobj=reg-m68k.o
fi
srv_tgtobj="linux-low.o linux-osdata.o linux-m68k-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
srv_linux_regsets=yes
srv_linux_thread_db=yes
@ -156,6 +165,7 @@ case "${target}" in
srv_regobj="${srv_regobj} mips64-linux.o"
srv_regobj="${srv_regobj} mips64-dsp-linux.o"
srv_tgtobj="linux-low.o linux-osdata.o linux-mips-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_xmlfiles="mips-linux.xml"
srv_xmlfiles="${srv_xmlfiles} mips-dsp-linux.xml"
srv_xmlfiles="${srv_xmlfiles} mips-cpu.xml"
@ -188,6 +198,7 @@ case "${target}" in
srv_regobj="${srv_regobj} powerpc-isa205-altivec64l.o"
srv_regobj="${srv_regobj} powerpc-isa205-vsx64l.o"
srv_tgtobj="linux-low.o linux-osdata.o linux-ppc-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_xmlfiles="rs6000/powerpc-32l.xml"
srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-altivec32l.xml"
srv_xmlfiles="${srv_xmlfiles} rs6000/powerpc-cell32l.xml"
@ -230,6 +241,7 @@ case "${target}" in
srv_regobj="${srv_regobj} s390x-linux64v1.o"
srv_regobj="${srv_regobj} s390x-linux64v2.o"
srv_tgtobj="linux-low.o linux-osdata.o linux-s390-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_xmlfiles="s390-linux32.xml"
srv_xmlfiles="${srv_xmlfiles} s390-linux32v1.xml"
srv_xmlfiles="${srv_xmlfiles} s390-linux32v2.xml"
@ -250,12 +262,14 @@ case "${target}" in
;;
sh*-*-linux*) srv_regobj=reg-sh.o
srv_tgtobj="linux-low.o linux-osdata.o linux-sh-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_usrregs=yes
srv_linux_regsets=yes
srv_linux_thread_db=yes
;;
sparc*-*-linux*) srv_regobj=reg-sparc64.o
srv_tgtobj="linux-low.o linux-osdata.o linux-sparc-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_regsets=yes
srv_linux_thread_db=yes
;;
@ -272,12 +286,14 @@ case "${target}" in
srv_xmlfiles="${srv_xmlfiles} tic6x-gp.xml"
srv_xmlfiles="${srv_xmlfiles} tic6x-c6xp.xml"
srv_tgtobj="linux-low.o linux-osdata.o linux-tic6x-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_regsets=yes
srv_linux_usrregs=yes
srv_linux_thread_db=yes
;;
x86_64-*-linux*) srv_regobj="$srv_amd64_linux_regobj $srv_i386_linux_regobj"
srv_tgtobj="linux-low.o linux-osdata.o linux-x86-low.o i386-low.o i387-fp.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_xmlfiles="$srv_i386_linux_xmlfiles $srv_amd64_linux_xmlfiles"
srv_linux_usrregs=yes # This is for i386 progs.
srv_linux_regsets=yes
@ -292,6 +308,7 @@ case "${target}" in
xtensa*-*-linux*) srv_regobj=reg-xtensa.o
srv_tgtobj="linux-low.o linux-osdata.o linux-xtensa-low.o linux-procfs.o"
srv_tgtobj="${srv_tgtobj} linux-ptrace.o"
srv_linux_regsets=yes
;;
*) echo "Error: target not supported by gdbserver."

8
gdb/gdbserver/linux-low.c
View File

@ -660,10 +660,10 @@ linux_attach_lwp_1 (unsigned long lwpid, int initial)
fflush (stderr);
return;
}
else
/* If we fail to attach to a process, report an error. */
error ("Cannot attach to lwp %ld: %s (%d)\n", lwpid,
strerror (errno), errno);
/* If we fail to attach to a process, report an error. */
error ("Cannot attach to lwp %ld: %s (%d)\n", lwpid,
strerror (errno), errno);
}
if (initial)

37
gdb/linux-nat.c
View File

@ -2465,37 +2465,6 @@ linux_handle_extended_wait (struct lwp_info *lp, int status,
_("unknown ptrace event %d"), event);
}
/* Return non-zero if LWP is a zombie. */
static int
linux_lwp_is_zombie (long lwp)
{
char buffer[MAXPATHLEN];
FILE *procfile;
int retval;
int have_state;
xsnprintf (buffer, sizeof (buffer), "/proc/%ld/status", lwp);
procfile = fopen (buffer, "r");
if (procfile == NULL)
{
warning (_("unable to open /proc file '%s'"), buffer);
return 0;
}
have_state = 0;
while (fgets (buffer, sizeof (buffer), procfile) != NULL)
if (strncmp (buffer, "State:", 6) == 0)
{
have_state = 1;
break;
}
retval = (have_state
&& strcmp (buffer, "State:\tZ (zombie)\n") == 0);
fclose (procfile);
return retval;
}
/* Wait for LP to stop. Returns the wait status, or 0 if the LWP has
exited. */
@ -2549,10 +2518,10 @@ wait_lwp (struct lwp_info *lp)
This is racy, what if the tgl becomes a zombie right after we check?
Therefore always use WNOHANG with sigsuspend - it is equivalent to
waiting waitpid but the linux_lwp_is_zombie is safe this way. */
waiting waitpid but linux_proc_pid_is_zombie is safe this way. */
if (GET_PID (lp->ptid) == GET_LWP (lp->ptid)
&& linux_lwp_is_zombie (GET_LWP (lp->ptid)))
&& linux_proc_pid_is_zombie (GET_LWP (lp->ptid)))
{
thread_dead = 1;
if (debug_linux_nat)
@ -3499,7 +3468,7 @@ check_zombie_leaders (void)
/* Check if there are other threads in the group, as we may
have raced with the inferior simply exiting. */
&& num_lwps (inf->pid) > 1
&& linux_lwp_is_zombie (inf->pid))
&& linux_proc_pid_is_zombie (inf->pid))
{
if (debug_linux_nat)
fprintf_unfiltered (gdb_stdlog,